Gas-generating retort-furnace



(No Model 2 Sheets-Shet 1.

R. H. SMITH.

GAS GENERATING RETORT FURNACE. No. 321,770. Patented July 7, 1885.

(No Model.)

. 2 Sheets-Sheet 2.

R. E. SMITH. I GAS GENERATING RETORT FURNACE.

Patented July 7, 1885.

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ROLAND H. SMITH, OF PITTSBURG, PENNSYLVANIA.

GAS-GENERATING RETORT=FURNACE.

$PECIFICATIQN forming part of Letters Patent No. 321,770, dated July 7,1885.

Application filed April 22, 1884. (No model.)

To all whom it may concern.-

Be it known that I, ROLAND H. SMITH, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inGas-Generating Retort-Furnaces, of which the following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to furnaces for the generation of gas, moreparticularly that from petro eum or other gas-producing oil, and has forits object to provide means whereby the retorts may be fully protectedin their connections, and thus prevent the leakage of gas and also ameans whereby they may be easily and readily removed. The retort is alsoprotected from the action of the fire.

In the drawings, Figure 1 represents a longitudinal section through theretorts and supporting-arch; Fig. 2, an end view of the retorts andarch; Fig. 3, a detail view of the supporting-arch; Fig. 4, aperspectiveview of the casing of the furnace, showing a loose plate for allowingthe removal of the retorts, and Fig. 5, a View of the back ofthefurnace, showing a loose plate for the same purpose; Fig. 6, across-section of the arch, and Fig. 7, a perspective view of one-of thesemi-cylindrical plates.

A represents a retort of the shape shown, having an outlet-pipe, B,arranged with a flange and groove around it for the purpose of sealingwith lead,preferably. One end projects downward and is sealed in asuitable flanged groove around an opening in the tube 0 which forms aportion of the retort. This tube is open at both ends and is supportedon an arch of fire-clay or suitable material. This arch D is of suitableshape, as shown in the drawings, and has semicircular grooves on top forthe reception of the tubes, and also is provided with openings E betweenand on each side of the grooves mentioned. On top of the tubes areplaced arched plates D, semicircular in cross-section, thus completelycovering the said tubes and protecting them from the direct action ofthe fire. The holes E allow the heat to ascend and reach the upper partof the retorts A.

F represents the casing surrounding a series of retorts and containingthe fire-box, 850.

G represents a loose plate secured in the back of the retort by means ofthe lugs H, and is so placed that when removed the retorts may be takenout from the casing.

I represents a similar plate placed in front of the casing, and for thesame purpose as the plate G. Y

K and L represent, respectively, the fire and ash doors.

The oil is received in the tubes through the openings M, and isconverted into gas by heat and then ascends into the upper retort, fromwhence it is conveyed through the usual and proper channels to thegasreceiver. The openings all have proper pipe-connections.

Having described the invention,what I claim 1. The grooved arch providedwith draftopenings for the passage of heat and the semicylindriealplates, adapted to cover the tubes of the retort, all operating as andfor the purpose specified.

2. The combination, with a grooved arch provided with draftopenings forthe passage of heat and semi-cylindrical plates, of retorttubes restingon the arch and covered by the plates and retorts placed above the saidtubes and connected to them, substantially as and for the purposespecified.

3. The combination of the retorts, the supporting perforated arch andcoverings, the removable plates and the casing, all arranged as and forthe purpose specified.

In testimony whereof I aflix my signature in presence of two witnesses.

ROLAND E. SMITH.

Witnessesi En. H. STRAUB, WILLIAM HERB.

